A027919 - cp's OEIS frontend

A027919 a(n) = least k such that 2nd elementary symmetric function of {1,2,...,k+1} >= 3rd elementary symmetric function of {1,2,...,n}.

n	a(n)
3	2
4	4
5	6
6	8
7	11
8	13
9	16
10	19
11	22
12	25
13	29
14	32
15	36
16	39
17	43
18	47
19	51
20	56
21	60
22	64
23	69
24	74
25	78
26	83
27	88
28	93
29	98
30	103
31	109
32	114
33	119
34	125
35	131
36	136
37	142
38	148
39	154
40	160
41	166
42	172
43	178
44	185
45	191
46	198
47	204
48	211
49	217
50	224
51	231
52	238
53	245
54	252
55	259
56	266

[2, 4, 6, 8, 11, 13, 16, 19, 22, 25, 29, 32, 36, 39, 43, 47, 51, 56, 60, 64, 69, 74, 78, 83, 88, 93, 98, 103, 109, 114, 119, 125, 131, 136, 142, 148, 154, 160, 166, 172, 178, 185, 191, 198, 204, 211, 217, 224, 231, 238, 245, 252, 259, 266]

cp's OEIS Frontend

A027919 a(n) = least k such that 2nd elementary symmetric function of {1,2,...,k+1} >= 3rd elementary symmetric function of {1,2,...,n}.

Table of values

List of values

n	a(n)
3	2
4	4
5	6
6	8
7	11
8	13
9	16
10	19
11	22
12	25
13	29
14	32
15	36
16	39
17	43
18	47
19	51
20	56
21	60
22	64
23	69
24	74
25	78
26	83
27	88
28	93
29	98
30	103
31	109
32	114
33	119
34	125
35	131
36	136
37	142
38	148
39	154
40	160
41	166
42	172
43	178
44	185
45	191
46	198
47	204
48	211
49	217
50	224
51	231
52	238
53	245
54	252
55	259
56	266

n	a(n)
3	2
4	4
5	6
6	8
7	11
8	13
9	16
10	19
11	22
12	25
13	29
14	32
15	36
16	39
17	43
18	47
19	51
20	56
21	60
22	64
23	69
24	74
25	78
26	83
27	88
28	93
29	98
30	103
31	109
32	114
33	119
34	125
35	131
36	136
37	142
38	148
39	154
40	160
41	166
42	172
43	178
44	185
45	191
46	198
47	204
48	211
49	217
50	224
51	231
52	238
53	245
54	252
55	259
56	266

n	a(n)
3	2
4	4
5	6
6	8
7	11
8	13
9	16
10	19
11	22
12	25
13	29
14	32
15	36
16	39
17	43
18	47
19	51
20	56
21	60
22	64
23	69
24	74
25	78
26	83
27	88
28	93
29	98
30	103
31	109
32	114
33	119
34	125
35	131
36	136
37	142
38	148
39	154
40	160
41	166
42	172
43	178
44	185
45	191
46	198
47	204
48	211
49	217
50	224
51	231
52	238
53	245
54	252
55	259
56	266